Island



(No Model.) 2 Sheets-Sheet 1.

' G. PAY.

HOISTING BUGKBT..

Patented May 28, 1895.

(No Model.) 2 Sheefs-Sheet 2.

' G. PAY. HOISTING BUCKET.

Patented May 28, 1895.

WITNESS Es.

4 UNITED STATES- ATENT Enron.

CHARLES PAY, OF PROVIDENCE, RHODE ISLAND.

HOISTING-BUCKET.

SPECIFICATION forming part of Letters Patent No. 539,921 dated May 28, 1895.

Application filed March 23, 1895 To all whom it may concern:

Be it known that I, CHARLES PAY, of Providence; in the county ofProvidence and State of Rhode Island, have invented certain new anduseful Improvements in Hoisting-Buckets; and I do hereby declare thatthe following is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters of referencemarked thereon, which form a part of this specification.

Figure 1 is an end view of the bucket closed. Fig. 2 is an end view ofthe bucket open. Fig. 3 is a top view taken on the line m on, Fig. 2,showing the working mechanism and supporting-frames. Fig.4 is a verticalsection taken on line y y of Fig. 2, showing the generalarrangement forholding the worm-n ut in position on the screw-shaft. Fig. 5 is asimilar view taken on line 2 2, Fig. 1. Fig. 6 is a view taken on line aa of Fig. 4, showing position of the yoke 72. when the bucket is closed.Fig. 7 is a similar view taken on line b b of Fig. 5 to show how theyoke rests on the screw-shaft when the bucket is open. Fig. 8 is thedrum with a hood suspended from the screwshaft to prevent the materialto be lifted from collecting on the cable or chain.

The 'objectof my invention is to produce a bucket in which the halves,shall be capable of a wider or greater opening, and is so constructed asto require a much less height in proportion than any in use at thepresent time, and which serves to give the bucket a greater downwardtendency in closing and enables it to grasp or secure a. greaterquantity of material, and at the same time possessing greater closingpower, the three of which features are especially useful in operatingupon coarse material, and it consists in the combination and arrangementof devices as hereinafter described. In a bucket of this class it isdesirable before dropping it upon the ma- Serial No. 542,978. (Noniodel.)

ends of the halves and project inwardly to form around a fulcrum or pina, on which said halves swing. A connecting bar 0, extends horizontallyfrom center to center of the pin a, and on the inner side and from saidpin a, is attachedthe supporting frame D, which inclines inwardly towardthe center of the machine and is riveted to a square shaped plate E, thecenter of which has two openings (1, through which the chains or cablespass. (See Fig. 3.)

On the inner side of the connecting bar C, are two short arms 0, whichare provided for bringing the edges 1), of the halves uniformlytogether, this being accomplished by the lower side of the arms 0,coming in contact with the armsBr', of the halves of the bucket beforethe edges of said halves come together.

In referring to Fig. 3F, is a shaft upon which a right and left handthread is formed on either end and which screws into the nuts 6, saidnuts being pivoted on trunnions f, which in turn are fastened to theV-shaped frame g. (See Fig. 5.) A yoke h, the sides of which are held inplace by the trunnions, is

.made to form over the screw shaft to act as a stop when the bucket iswide open, said yoke 72, bearing on the screw shaft. (See Figs. 6 and 7j, is the operating cable or chain which rotates the shaft F, in closingthe bucket through its action upon the large flanged drum '6, said drumbeing placed about midway on the shaft and keyed to it.

7c, is the cable which raises or lowers the bucket. Said cable passesaround the shaft F, and is held on the flange Z, which is also keyed tothe shaft.

The horizontal center of the screw shaft is at a convenient height tosecure the requisite leverage in closing the bucket.

In referring to Fig. l,the bucket being closed, as it is let down by thecable 70, the cable j, is slackened, when the halves, A, A, beingsupported or pivoted on the pins a, a, open outwardly by the rotating ofthe screw shaft, said shaft screwing the nuts farther apart from eachother, the width of the opening of the halves depending upon the amountof slack in the cable j, and being at all times under the control of theoperator. The halves A, A, having been opened as shown in Fig. 2

brought together as they have a tendency to dig down into the materialwhich results in filling the bucket. When the bucket is closed it ishoisted up and discharged at the proper time and place by the slackeningof the cable j.

It will be very readily observed that the vertical space required forthe operation of the bucket is much less than that necessary for thepractical and successful operation of other buckets now in use, and atthe same time the two halves A, A, may be opened to a width which willbring their edges in a vertical line with the material to be removed andthe securing of a full load even when the material to be removed is verycoarse.

What I claim as my invention, and desire to secure by Letters Patent,is.

The combination of the arms B, B with the pins a, the connecting bar 0,between said pins a, with the guide arms 0, fastened thereon theV-shaped frame 9, with the trunnions f, for supporting the nut and yokein position on the said frame g, and the screw shaft F, having a rightand left hand thread formed thereon for rotating in the nuts 6, with thedrum 'i, fastened to said shaft, the central frame D, which supports thehalves of the bucket, and the cablej,which rotates the shaft, the wholeconstructed and operating on the halves A, A, to close the bucket,substantially as described.

CHARLES PAY.

\Vitnesses:

STEPHEN F. GHAoE. WILLIAM BROWN.

